2021 Annual Meeting
(712b) First-Principles Study on the Phase Transition and Fast Ionic Transport in Lithium Spinel Anode Material
Author
Seo, D. H. - Presenter, UNIST
With the growing interest in power sources for large applications such as an electric vehicle (EV), lithium-ion batteries are finding new opportunities in this emerging area. Intensive research efforts are focused on developing suitable electrode material, the key component of lithium-ion batteries, for these applications. The electrode materials for lithium-ion batteries for use in EV require high stability, energy, and power. In this talk, I will present the first-principles understanding on the reaction mechanism of fast-charging lithium titanate anode material[1]. We reconcile the apparent contradiction between the high-power capability of LTO and the poor lithium-ion conductivity of its end-member phases. This insight presents new opportunities in searching for high-rate electrode materials.
References
[1] W. Zhang,â¡ Dong-Hwa Seo,â¡ T. Chen,â¡ L. Wu, M. Topsakal, Y. Zhu, D. Lu, G. Ceder,* F. Wang*, âKinetic Pathways of Ionic Transport in Fast Charging Lithium Titanateâ, Science, 367 (6481): 1030-1034 (2020)